That’s it, just 4 lines of code. There’s really no need to deal with an entire UUID class. All you ever need to do with UUIDs is create them, compare them, and store/retrieve them. + stringWithUUID handles creation. The string it returns responds to - isEqual:, and is easy to write or read using the mature Foundation APIs. What more could you ask for from a UUID object?

Simpler Ways:

You might only need: [[NSProcessInfo processInfo] globallyUniqueString]. As the name implies, it gives you a UUID that can be used to identify a process.

If you want a UUID without messing with compiled code, the uuidgen command-line tool generates them, or you can use this website.

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